Format
Costachi, Mihnea
IM🇷🇴FIDE 1217518· Male· Romania· Born in 2000
Follow Mihnea CostachiTrack his monthly FIDE ratings, games, tournaments and more.
Mihnea Costachi, a 26-year-old Romanian International Master, is rated 2459 — just 25 short of his peak of 2484 (Oct 2018, age 18) and ranked 14th among Romanian players, and in the top 1% worldwide. He plays occasionally (7 games in the last 12 months). Recent appearance: Romania National Team Championship 2025 - 2nd League. Also played 6 rapid (including European Rapid Chess Championship 2025) and 5 blitz events (including European Blitz Chess Championship 2025) recently. He reached Romanian #10 in Jan 2026.
Awarded IM in 2016 (age 16) and FM in 2014 (age 14). At junior level, he reached World #47 in U20, World #28 in U18, World #30 in U16, World #11 in U14, World #61 in U12, World #43 in U10 and World #15 in U8.
Current rating
2459
Standard
Rpd2381·Blz2482
All-time high
2484
−25 pts below
Oct 2018 · age 18
Oct 2018 · age 18
Activity
12
games / yr avg. · ≈1/mo
7 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#14
#14 · Romanian players · of 2,168
Career timeline
23 entries2026
Peak Romanian rank: #10
at age 26 · rated 2459
Jan 2026
2020
Inactive for 19 months
paused at 2471 → returned at 2463
Mar 2020
47th U20 player worldwide
at age 20 · rated 2472
Feb 2020
2018
28th U18 player worldwide
at age 18 · rated 2484
Nov 2018
All-time peak 2484
at age 18 · −25 from today
Oct 2018
2016
30th U16 player worldwide
at age 16 · rated 2428
Nov 2016
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
Activity & highlights
Top opponent
Evolution
-5
2464 → 2459
Tournaments
1
7 games
Score
5/ 771.4%
3W4D0L
Top 3 wins
Top losses
Undefeated in the last 12 months.
Last 12 months — tournaments
1 event| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Sep 2025 | 5/7 | #33 | 2389 | -5.2 |
Most-Played Opponents
vsAlexandru-Bogdan BanzeaIM
🇷🇴ROU·2394
+10 −5 =12
27 games·last met Dec 2019
View head-to-head →
vsBogdan-Daniel DeacGM
🇷🇴ROU·2656
+1 −15 =10
26 games·last met Dec 2024
View head-to-head →
vsVladislav NevednichyGM
🇷🇴ROU·2441
+5 −5 =11
21 games·last met Nov 2025
View head-to-head →
vsAdrian-Simion SecheresFM
🇷🇴ROU·2330
+3 −1 =17
21 games·last met Nov 2025
View head-to-head →
vsDavid GavrilescuGM
🇷🇴ROU·2545
+4 −4 =12
20 games·last met Nov 2025
View head-to-head →
Rankings
/
Romania
#14
out of 2,776 players
Europe
#561
in continent
World
#928
out of 400,000+
National ranking
Europe & World
Europe
World
Romania
| 1 | 🇷🇴Follow Bogdan-Daniel DeacTrack their monthly FIDE ratings, games, tournaments and more. | 2,656 |
| 2 | 🇷🇴Follow Liviu-Dieter NisipeanuTrack their monthly FIDE ratings, games, tournaments and more. | 2,582 |
| 3 | 🇷🇴Follow Constantin LupulescuTrack their monthly FIDE ratings, games, tournaments and more. | 2,577 |
| 4 | 🇷🇴Follow Alexander MotylevTrack their monthly FIDE ratings, games, tournaments and more. | 2,550 |
| 5 | 🇷🇴Follow David GavrilescuTrack their monthly FIDE ratings, games, tournaments and more. | 2,545 |
| 6 | 🇷🇴Follow Costica-Ciprian NanuTrack their monthly FIDE ratings, games, tournaments and more. | 2,517 |
| 7 | 🇷🇴Follow Mircea-Emilian ParligrasTrack their monthly FIDE ratings, games, tournaments and more. | 2,507 |
| 8 | 🇷🇴Follow Filip MagoldTrack their monthly FIDE ratings, games, tournaments and more. | 2,501 |
| 9 | 🇷🇴Follow Felix-Antonio IlincaTrack their monthly FIDE ratings, games, tournaments and more. | 2,495 |
| 10 | 🇷🇴Follow Lucian-Costin MironTrack their monthly FIDE ratings, games, tournaments and more. | 2,484 |
| ... | ||
| 14 | 2,459 | |
Europe
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 3 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 4 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,744 |
| 5 | 🇵🇱Follow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more. | 2,739 |
| 6 | 🇭🇺Follow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more. | 2,729 |
| 7 | 🇳🇱Follow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more. | 2,728 |
| 8 | 🇫🇷Follow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more. | 2,721 |
| 9 | 🇦🇿Follow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,717 |
| 10 | 🇹🇷Follow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more. | 2,713 |
| ... | ||
| 561 | 2,459 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 2 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 4 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 6 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 8 | 🇮🇳Follow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more. | 2,761 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 9 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 928 | 2,459 | |